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System: Rewrite EXE override/loading

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Relies on POST=7 as a kernel initialization indicator, instead of
patching the BIOS.

Fixes EXE loading with OpenBIOS and PS2 BIOS, and fast boot getting
baked into save states.
This commit is contained in:
Stenzek
2024-07-28 16:16:05 +10:00
parent 7b99fcbbf3
commit 6fe0c986fa
13 changed files with 327 additions and 322 deletions
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15
src/core/system.h
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@ -109,6 +109,14 @@ enum class State
Stopping,
};
enum class BootMode
{
FullBoot,
FastBoot,
BootEXE,
BootPSF,
};
using GameHash = u64;
extern TickCount g_ticks_per_second;
@ -194,10 +202,6 @@ ALWAYS_INLINE_RELEASE TickCount UnscaleTicksToOverclock(TickCount ticks, TickCou
TickCount GetMaxSliceTicks();
void UpdateOverclock();
/// Injects a PS-EXE into memory at its specified load location. If patch_loader is set, the BIOS will be patched to
/// direct execution to this executable.
bool InjectEXEFromBuffer(const void* buffer, u32 buffer_size, bool patch_loader = true);
u32 GetGlobalTickCounter();
u32 GetFrameNumber();
u32 GetInternalFrameNumber();
@ -207,10 +211,11 @@ void FrameDone();
const std::string& GetDiscPath();
const std::string& GetGameSerial();
const std::string& GetGameTitle();
const std::string& GetExeOverride();
const GameDatabase::Entry* GetGameDatabaseEntry();
GameHash GetGameHash();
bool IsRunningUnknownGame();
bool WasFastBooted();
BootMode GetBootMode();
/// Returns the time elapsed in the current play session.
u64 GetSessionPlayedTime();